Dolby TrueHD on xbox360 HD DVD add-on. - High-Def Digest Forums
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Old 12-27-2007, 10:46 AM
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Default Dolby TrueHD on xbox360 HD DVD add-on.

i know that the xbox360 does not output Dolby trueHD, but im just wondering. how does the xbox360 HD DVD add-on connected to a harman kardon avr 146 receiver via optical cable sounds? also, since the xbox360 HD DVD add-on cannot output the new sound format, is there any noticeable difference between DD+ and Dolby trueHD???
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Old 12-27-2007, 11:23 AM
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i heard the 360 addon only outputs regular dolby digital or dts audio regardless of hdmi or optical... I wouldn't know because my 360/addon is hooked up to a receiver that supports only optical and coax... I know that optical and coax do not support the bandwidth for dd+/truehd/dts-hd ... If you want losless audio, you need a standalone player and a reciever with hdmi or component audio.
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Old 12-27-2007, 11:24 AM
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The sound you get from the 360AO is regular DD, just like on standard DVDs. This is inferior to high-bitrate DD+ or TrueHD. I'm not saying DD sounds bad, it's just not the best and on a good system you can easily tell.
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Old 12-27-2007, 04:54 PM
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You can get DTS which is 1.5mbps, Dolby Digital is 640(I cant rememeber exactly)
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Old 12-27-2007, 05:07 PM
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Quote:
Originally Posted by Rishi View Post
The sound you get from the 360AO is regular DD, just like on standard DVDs. This is inferior to high-bitrate DD+ or TrueHD. I'm not saying DD sounds bad, it's just not the best and on a good system you can easily tell.
The 360 decodes DD+ and Dolby True HD then when the 360 re-encodes it you can choose DD(640kbs) or DTS(1.5mbs) for transport over optical or HDMi to your receiver.
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Old 12-27-2007, 05:24 PM
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Damn USB cable is what's killing the whole damn audio.

To the OP: DTS @ 1.5 Mbps isn't lossless but it's pretty good. There are those of us that are spoiled with PCM/DD+/TrueHD/DTS-MA tracks but honestly knowing what I know now I'd be happy with DTS.

Does your reciever support audio via HDMI? I ask only because I know the 247/347 do but they have issues with PCM LFE tracks. The LFE doesn't get increased accordingly or something. I'm not sure if there's a way around this or not.

Hope all my typing helps!
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Old 12-28-2007, 09:31 AM
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i havent even heard a reciever that supports dolby truehd or dts master hd!!! i have 3 bb's and 2 cc's within 10 miles of me and neither of them have one of those recievers hooked up!!! how do they expect 2 sell them???
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Old 12-30-2007, 12:51 PM
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Before the HD-DVD drive add-on were we getting 1.5 mbps DTS on SD-DVDs if we used optical?

Anyways, 1.5 DTS sounds for most movies, I mean might as well use the Onkyo sound-processors every now and then.
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Old 12-30-2007, 12:56 PM
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Quote:
Originally Posted by LastSonOfKrypton View Post
Damn USB cable is what's killing the whole damn audio.

To the OP: DTS @ 1.5 Mbps isn't lossless but it's pretty good. There are those of us that are spoiled with PCM/DD+/TrueHD/DTS-MA tracks but honestly knowing what I know now I'd be happy with DTS.

Does your reciever support audio via HDMI? I ask only because I know the 247/347 do but they have issues with PCM LFE tracks. The LFE doesn't get increased accordingly or something. I'm not sure if there's a way around this or not.

Hope all my typing helps!
The USB cable has nothing to do with it. USB2 has way more than enough bandwidth.
The 360 wasn't designed to output multichannel pcm and one of the DATA buses wasn't designed to carry it. The 360 motherboard and components need a major revision to allow multichannel pcm output. If they ever produce a box with an internal HD DVD drive I would think that unit would have that revision.
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Old 12-30-2007, 04:09 PM
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Quote:
Originally Posted by thedude View Post
i havent even heard a reciever that supports dolby truehd or dts master hd!!! i have 3 bb's and 2 cc's within 10 miles of me and neither of them have one of those recievers hooked up!!! how do they expect 2 sell them???
They are not really the stores that would have something like that. Over here in Canada, Future Shop or Best Buy (equivalent) do not carry high def audio equipment. You have to go to specialty shops. (ie: audiotronics (dumoulin in quebec)). I have a Denon AVR-3808CI and they support all of the high def formats. I also know Onkyo makes one for a decent price too. Keep reading in the hardware forums and you will see more players that support the high defs audio.
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